Enhanced permeability and retention effect: A key facilitator for solid tumor targeting by nanoparticles

Area of Science:

• Oncology
• Nanotechnology
• Biomedical Engineering

Background:

• The enhanced permeability and retention (EPR) effect is crucial for passive tumor targeting.
• Tumor microenvironments exhibit leaky vasculature and impaired lymphatic drainage, facilitating nanoparticle accumulation.
• Understanding EPR is key to developing effective nanotherapeutics.

Purpose of the Study:

• To review fundamental studies on the role of the EPR effect in passive targeting.
• To summarize therapeutic nanoformulations that utilize the EPR effect for cancer treatment.
• To highlight the application of EPR in combating neoplasia.

Main Methods:

• Review of fundamental research on the EPR effect.
• Analysis of various nanoformulation strategies for cancer therapy.
• Exploration of therapeutic modalities including chemotherapy, photodynamic therapy, and immunotherapy.

Main Results:

• The EPR effect enables preferential accumulation of nanoparticles in tumor tissues.
• Nanoformulations demonstrate significant potential in enhancing therapeutic efficacy via EPR.
• Combined therapeutic approaches show promise for improved cancer treatment outcomes.

Conclusions:

• The EPR effect is a vital phenomenon for passive nanoparticle targeting in tumors.
• Nanoformulations offer a promising platform for exploiting the EPR effect in cancer therapy.
• Further research into EPR-mediated strategies can advance cancer treatment.